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Noun
1. asthenosphere
Wikipedia definition
2. AsthenosphereThe asthenosphere (from Greek asthenēs 'weak' + sphere) is the highly viscous, mechanically weak and ductilely-deforming region of the upper mantle of the Earth. It lies below the lithosphere, at depths between 100 and 200 km (~ 62 and 124 miles) below the surface, but perhaps extending as deep as 700 km (430 mi).
Read “Asthenosphere” on English Wikipedia
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Read “Asthenosphere” on DBpedia

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